Parts · ICs
TL071
Single JFET-Input Op-Amp DIP-8 / SOIC-8.178 circuits use this part. Listed as: Single op-amp, DIP8; Operational amplifier, DIP8; BJT transistor, NPN, TO-92; IC TL071 DIP8; Operational amplifier, single, DIP8.
Datasheet · from ti.com
Substitutes same socket
Parts that fit the same socket: the same function, pin count and pinout. The figures are read off each part's datasheet (this one's from page 15), typical where the sheet gives a typical value, otherwise the maximum. Closest first; the last column says what differs. A different part can change the sound, and a circuit may lean on one particular figure, so read the build document's notes before you swap.
This part
| Part | Input | Supply | GBW | Slew | Noise | Iq | Boards |
|---|---|---|---|---|---|---|---|
| TL071 | JFET | 4.5–40 V | 5.25 MHz | 20 V/µs | 37 nV | 1.4 mA | 178 |
JFET input; this revision shows pins 1, 5 and 8 as no-connect on the DIP, so no offset trim.
Fits the same socket
| Part | Input | Supply | GBW | Slew | Noise | Iq | Boards | Differs |
|---|---|---|---|---|---|---|---|---|
| TL081 | JFET | 4.5–40 V | 5.25 MHz | 20 V/µs | 37 nV | 1.4 mA | 20 | JFET input; this revision shows no offset-null pins on the DIP. |
| TL051 | JFET | 10–30 V | 4.5 MHz | 17.8 V/µs | 10.8 nV | 2.1 mA | 8 | rated from 10 V. Trimmed-offset upgrade for the TL071/TL081; pins 1, 5 and 8 are no-connect in this revision. |
| LF356 | JFET | ?–36 V | 5 MHz | 12 V/µs | 12 nV | 5 mA | 14 | draws 5 mA per amplifier. JFET single drawing about 5 mA; specified at ±15 V. |
| OPA134 | JFET | 5–36 V | 8 MHz | 20 V/µs | 8 nV | 4 mA | 3 | draws 4 mA per amplifier. FET-input audio op-amp with no offset null; leave pins 1, 5 and 8 unconnected. |
| LF355 | JFET | ?–36 V | 2.5 MHz | 5 V/µs | 20 nV | 2 mA | 1 | Lower-power, slower sibling of the LF356. |
| OPA604AP | JFET | 9–48 V | 20 MHz | 25 V/µs | 11 nV | 5.3 mA | 4 | draws 5.3 mA per amplifier. FET-input audio op-amp that runs to ±24 V but draws about 5.3 mA. |
| CA3140 | mosfet | 4–36 V | 4.5 MHz | 9 V/µs | 40 nV | 4 mA | 12 | MOSFET input; input range reaches the negative rail; draws 4 mA per amplifier. MOSFET input that reaches 0.5 V below the negative rail, internally compensated; draws about 4 mA. |
| LM308 | bipolar | 10–36 V | 0.3 mA | 96 | bipolar input; needs a compensation capacitor across pins 1 and 8; rated from 10 V. Needs a compensation capacitor (30 pF typical) between pins 1 and 8; the cap sets slew rate and tone. | |||
| TL061 | JFET | 10–30 V | 1 MHz | 3.5 V/µs | 30 nV | 0.2 mA | 34 | rated from 10 V; much slower. Low-power JFET op-amp at 200 µA; the pin table gives offset null on 1 and 5 though the drawing marks them NC. |
| CA3130 | mosfet, RR out | 5–16 V | 4 MHz | 10 V/µs | 10 mA | 54 | MOSFET input; needs a compensation capacitor across pins 1 and 8; 16 V max, not for 18 V; input range reaches the negative rail; rail-to-rail output; draws 10 mA per amplifier. Needs a 47 pF capacitor between pins 1 and 8 for unity-gain stability (15 MHz uncompensated) and is limited to 16 V total supply. |
| Faceplate | Circuit | Based on | Category | Vendor | Box | Knobs | Price | BOM |
|---|---|---|---|---|---|---|---|---|
| Anomaly Vintage Distortion 2N3906 · TL071 Crowther Hotcake · 125B | Crowther Hotcake | Distortion | Aion FX | 125B | 3 | $12.50 | 39 | |
| Cepheus Amp Overdrive BC549C · TL071 · TL072 Cornish CC-1/GC-1 · 125B | Cornish CC-1/GC-1 | Overdrive | Aion FX | 125B | 5 | $12.50 | 82 | |
| Nysiad Germanium Fuzz BC549C · NPN GE · TL071 Cornish NG-2 · 125B | Cornish NG-2 | Fuzz | Aion FX | 125B | 5 | $12.50 | 92 | |
| Nysiad Silicon Fuzz BC549C · TL071 Cornish NG-3 · 125B | Cornish NG-3 | Fuzz | Aion FX | 125B | 5 | $12.50 | 87 | |
| Perseid Bass Drive BC549C · TL071 Cornish BD-1 · 125B | Cornish BD-1 | Overdrive | Aion FX | 125B | 4 | $12.50 | 82 | |
| Sigma Vintage Drive BC549C · TL071 Cornish ST-2 · 125B | Cornish ST-2 | Overdrive | Aion FX | 125B | 4 | $12.50 | 87 | |
| Soma Vintage Overdrive 2N5088 · TL071 Cornish SS-3 Soft Sustain · 125B | Cornish SS-3 Soft Sustain | Overdrive | Aion FX | 125B | 4 | $12.50 | 67 | |
| TS-50 Bass Preamp 2N3906 · MPSA18 · TL071 Traynor TS-50B · 1590BBS | Traynor TS-50B | Overdrive | Aion FX | 1590BBS | 4 | $16.00 | 87 | |
| TS-50 Guitar Preamp 2N3906 · MPSA18 · TL071 Traynor TS-50 · 1590BBS | Traynor TS-50 | Overdrive | Aion FX | 1590BBS | 4 | $16.00 | 90 | |
| Morley M2 Volume Wah (M2WA) schematic 2N3904 · TL071 | — | Wah / Envelope | Bent Fishbowl | — | 2 | — | 26 | |
| Sawzall HM-2 EQ & Overdrive TL071 · TL072 Boss HM-2 / MXR Distortion+ · 125B | Boss HM-2 / MXR Distortion+ | Distortion | Dead Air Studios | 125B | 9 | $11.00 | 51 | |
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| Aion Fx Traynor TS-50B Bass Preamp - ON HOLD Vero25×23 Unverified 2N3906 · 78L15 · LTC1144 · MPSA18 Traynor TS-50B | Traynor TS-50B | Overdrive | Dirtbox Layouts | — | 5 | — | 49 | |
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| Browne Amplification Protein Blue Channel Vero18×19 Verified TL071 · TL072 Browne Amplification Protein Blue Channel | Browne Amplification Protein Blue Channel | Overdrive | Dirtbox Layouts | — | 3 | — | 27 | |
| Cornish BD-1 Vero23×23 Verified BC549C · TL071 Cornish BD-1 | Cornish BD-1 | Overdrive | Dirtbox Layouts | — | 4 | — | 43 | |
| Cornish CC-1 Crunch Vero21×25 Verified BC549C · TL071 · TL072 Cornish CC-1 Crunch | Cornish CC-1 Crunch | Overdrive | Dirtbox Layouts | — | 5 | — | 42 | |
| Cornish GC-1 Vero21×25 Unverified BC549C · TL071 · TL072 Cornish GC-1 | Cornish GC-1 | Overdrive | Dirtbox Layouts | — | 5 | — | 40 | |
| Cornish NG-2 Vero24×24 Unverified BC549C · NPN GERMANIUM · TL071 Cornish NG-2 | Cornish NG-2 | Fuzz | Dirtbox Layouts | — | 5 | — | 47 | |
| Cornish NG-3 Vero24×21 Verified BC549C · TL071 Cornish NG-3 | Cornish NG-3 | Fuzz | Dirtbox Layouts | — | 5 | — | 43 | |
| Cornish SS-3 Soft Sustain Vero20×22 Verified BC549C · TL071 · TL071P Cornish SS-3 Soft Sustain | Cornish SS-3 Soft Sustain | Overdrive | Dirtbox Layouts | — | 4 | — | 39 | |
| Cornish ST-2 Vero22×27 Verified BC549C · TL071 Cornish ST-2 | Cornish ST-2 | Overdrive | Dirtbox Layouts | — | 4 | — | 40 | |
| Crowther Hot Cake Vero16×10 Verified TL071 Crowther Hotcake | Crowther Hotcake | Fuzz | Dirtbox Layouts | — | 3 | — | 20 | |
| Crowther Hot Cake 2008 version Vero18×13 Verified BC557 · TL071 Crowther Hot Cake 2008 version | Crowther Hot Cake 2008 version | Distortion | Dirtbox Layouts | — | 3 | — | 26 | |
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| Dr. Green Bearded Lady Bass Fuzz Vero21×18 Verified 2N4401 · BC549B · TL071 Dr. Green Bearded Lady Bass Fuzz | Dr. Green Bearded Lady Bass Fuzz | Fuzz | Dirtbox Layouts | — | 4 | — | 29 | |
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| Solid Gold Fx Super Drive Vero17×17 Verified 2N5089 · TL071 Solid Gold Fx Super Drive | Solid Gold Fx Super Drive | Distortion | Dirtbox Layouts | — | 3 | — | 30 | |
| Subdecay Stupid Box Vero14×9 Unverified TL071 Subdecay Stupid Box V1 | Subdecay Stupid Box V1 | Fuzz | Dirtbox Layouts | — | 3 | — | 14 | |
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| Metal Master 2N5457 · 2SC1815 · TL071 · TL074 Arion SMM-1 Metal Master · 125B | Arion SMM-1 Metal Master | Distortion | Dirt Monger Instruments | 125B | 4 | CA$16.50 | 61 | |
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| Greer Amps Tomahawk Perfboard Verified TL071 Greer Amps Tomahawk Deluxe Drive · 1590B | Greer Amps Tomahawk Deluxe Drive | Overdrive | Effects Layouts (blog) | 1590B | 3 | — | 20 | |
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| Solid Gold FX Super Drive Perfboard Verified 2N5088 · TL071 Solid Gold Fx Super Drive · 1590B | Solid Gold Fx Super Drive | Overdrive | Effects Layouts (blog) | 1590B | 3 | — | 24 | |
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| Op amp noninverting buffer 2 TL071 | — | Utility | Experimentalists Anonymous | — | — | — | 5 | |
| Op amp noninverting buffer 4 TL071 | — | Utility | Experimentalists Anonymous | — | — | — | 5 | |
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